WO2012022575A1 - Dispositif d'allumage à chauffage amélioré - Google Patents

Dispositif d'allumage à chauffage amélioré Download PDF

Info

Publication number
WO2012022575A1
WO2012022575A1 PCT/EP2011/062440 EP2011062440W WO2012022575A1 WO 2012022575 A1 WO2012022575 A1 WO 2012022575A1 EP 2011062440 W EP2011062440 W EP 2011062440W WO 2012022575 A1 WO2012022575 A1 WO 2012022575A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
area
ignition device
housing
sheet
Prior art date
Application number
PCT/EP2011/062440
Other languages
German (de)
English (en)
Inventor
Lothar Detels
Thomas Graf
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to US13/817,620 priority Critical patent/US20130180491A1/en
Priority to BR112013003746A priority patent/BR112013003746A2/pt
Publication of WO2012022575A1 publication Critical patent/WO2012022575A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/055—Layout of circuits with protective means to prevent damage to the circuit, e.g. semiconductor devices or the ignition coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/367—Cooling facilitated by shape of device
    • H01L23/3675—Cooling facilitated by shape of device characterised by the shape of the housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/467—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing gases, e.g. air
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the present invention relates to an ignition device for a
  • Ignition devices for internal combustion engines are known from the prior art in different embodiments. Due to the tendency of the
  • the ignition devices usually include a transformer area with ignition coil and iron core and an electronic assembly.
  • the electronics module would have to be arranged relatively close to the transformer area. However, this may increase the heat input from the transformer area into the electronics module, which may result in the electronics module having a reduced service life due to the increased temperature. Thus, a reliability of the ignition devices would be reduced.
  • the ignition device according to the invention with the features of claim 1 has the advantage over that a heat load of
  • a housing is provided with a housing wall, wherein the housing wall has a first area-like wall area and a second area-like wall area. The two area-like wall areas are over one
  • connection area connected to each other such that between the first and second sheet-like wall region, a cooling space is present.
  • the cooling room is connected to the environment and thus serves as
  • the two area-like wall areas divide the housing into one
  • the first area-like wall area is parallel to the second area-like wall area.
  • the first area-like wall area is parallel to the second area-like wall area.
  • the cooling space in this case has a width which is greater than in each case a thickness of the first and second sheet-like
  • Wall areas which can lead heat from the transformer area to the electronics module, are as small as possible.
  • the electronics module is arranged at a distance from the first area-like wall area.
  • a direct contact of the electronic assembly is avoided with the sheet-like wall region, so that here also a heat transfer can be done at most via thermal radiation.
  • the area-like wall areas are in communication with the cooling space, the heat transfer resulting therefrom is relatively small.
  • the cooling space is formed as a slot-like space, which in radial
  • the slit-like cooling space is preferably arranged in the radial direction of the ignition coil such that it extends over a center axis of the ignition coil.
  • the cooling space is formed on the housing wall such that the cooling space has three open sides. This can be a
  • Air flow are made possible by the cooling space, which ensures a particularly effective heat dissipation.
  • the cooling space according to the invention can thus easily during the
  • Housing wall used to provide a cooling space, which prevents excessive heat load on the electronic component of the
  • the invention thus provides a particularly simple solution for further miniaturization of the ignition device. drawing
  • Figure 1 is a schematic sectional view of an ignition device according to an embodiment of the invention
  • Figure 2 is an enlarged, schematic sectional view of
  • the ignition device 1 according to an embodiment of the invention described in detail.
  • the ignition device 1 comprises a housing 2, in which a coil 3 and a core 4 made of iron in the form of a plurality of electrical sheets is arranged. Further, a plug 6 is provided for electrical contact and the housing 2 is still a terminal 8 to
  • the ignition device 1 further comprises an electronic component 5, which is, for example, a printed circuit board with appropriately populated components.
  • the electronic component 5 is connected both to the plug 6 and to the coil 3.
  • the housing 2 is made of a plastic material and is
  • the housing 2 is, as can be seen from Figures 1 and 2, with a relatively thin housing wall
  • the housing wall comprises a first planar wall portion 21 and a second planar wall portion 22.
  • the two area-like wall regions 21 and 22 are arranged parallel to one another and connected to one another via a connection region 23.
  • a slot-shaped cooling space 7 is provided between the first area-like wall area 21 and the second area-type wall area 22 educated.
  • the cooling space 7 is connected to the ambient air and serves to cool the wall areas 21 and 22.
  • Core 4 are arranged and a second space 26, in which the
  • Electronic component 5 is arranged, divided.
  • the cooling space 7 has a width 10. Furthermore, a thickness of the first planar wall region 21 in FIG. 1 is identified by the reference numeral 11, and a thickness of the second planar wall region 22 is designated by the reference numeral 12. As can be seen from FIG. 1, the thickness 1 1 is smaller than the thickness 12. Furthermore, the width 10 of the cooling space 7 is wider than the thickness 11 of the first planar wall region 21 and the thickness 12 of the second planar wall region 22, as well wider than their sum. This can ensure effective cooling.
  • the cooling chamber 7 extends in the radial direction of the coil 3, starting from an outer side of the housing 2 to a central axis XX of the coil 3. This can ensure that the cooling chamber 7 penetrates deep into the housing interior and a sufficient thermal insulation between the first space 25 and the second space 26 is possible.
  • a depth of the slot-like cooling space 7 corresponds to a length L1 of the first area-like wall region 21, minus a thickness of the connection region 23 (see FIG. Further, a length L2 of the electronic component is equal to the length L1.
  • the arrangement of the first and second planar wall regions 21, 22, which is directed inwardly from an outside of the housing, achieves a thermal separation between the first and second
  • the cooling space 7 is preferably both open to the bottom and at least one side, so that the best possible flow through the cooling space 7 with air is possible.
  • the cooling space 7 is open on three sides. Furthermore, the cooling space 7 prevents direct heat conduction to the electronic component 5, since only a small and thin connection area 23 is provided between the second area-like wall area and the first area-like wall area 21. Via the cooling space 7, heat transfer can only take place by thermal radiation, which leads to a significantly worse
  • Cooling space 7 are obtained, so that a lifetime of
  • the cooling space 7 can be produced in a simple manner during the production of the housing 2. As a result, the manufacturing cost of the housing practically do not rise, according to the invention a free
  • Heatsink be provided by the cooling space 7. Therefore, the invention also surprisingly solves the problem for a person skilled in the art
  • the electronic components since with increasing reduction of the dimensions of internal combustion engines, the electronic components must be arranged closer and closer to the coils of the ignition device.
  • the distance 13 between the electronic component 5 and the first planar wall region 21 still supports the reduction of the base temperature of the electronic component 5, since here too only heat can be transmitted to the electronic component 5 by means of radiation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

L'invention concerne un dispositif d'allumage pour un moteur à combustion interne, comprenant un générateur de tension avec une bobine (3), un composant électronique (5), et un boîtier (2) avec une paroi de boîtier, la paroi de boîtier présentant une première partie de paroi plane (21), et une deuxième partie de paroi plane (22), ainsi qu'une partie de liaison (23) reliant la première et la deuxième partie de paroi plane (21, 22). Un espace de refroidissement (7) est disposé entre la première partie de paroi plane (21) et la deuxième partie de paroi plane (22) et est relié à un environnement extérieur. Il assure un refroidissement de la première et de la deuxième partie de paroi plane (21, 22), et les parties de paroi planes (21, 22) divisent le boîtier (2) en un premier espace (25) dans lequel est disposée la bobine (3), et un deuxième espace (26) dans lequel est disposé le composant électronique (5).
PCT/EP2011/062440 2010-08-20 2011-07-20 Dispositif d'allumage à chauffage amélioré WO2012022575A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/817,620 US20130180491A1 (en) 2010-08-20 2011-07-20 Ignition device having an improved thermal behavior
BR112013003746A BR112013003746A2 (pt) 2010-08-20 2011-07-20 dispositivo de ignição com comportamento térmico aperfeiçoado

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010039587.0 2010-08-20
DE102010039587A DE102010039587A1 (de) 2010-08-20 2010-08-20 Zündvorrichtung mit verbessertem Wärmeverhalten

Publications (1)

Publication Number Publication Date
WO2012022575A1 true WO2012022575A1 (fr) 2012-02-23

Family

ID=44629061

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/062440 WO2012022575A1 (fr) 2010-08-20 2011-07-20 Dispositif d'allumage à chauffage amélioré

Country Status (4)

Country Link
US (1) US20130180491A1 (fr)
BR (1) BR112013003746A2 (fr)
DE (1) DE102010039587A1 (fr)
WO (1) WO2012022575A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6105361B2 (ja) * 2013-04-09 2017-03-29 本田技研工業株式会社 汎用内燃機関の制御装置
WO2019220483A1 (fr) * 2018-05-14 2019-11-21 三菱電機株式会社 Dispositif de bobine d'allumage pour moteur à combustion interne

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4132153A1 (de) * 1990-09-28 1992-04-09 Mitsubishi Electric Corp Zuendspuleinheit fuer einen verbrennungsmotor
US20020104519A1 (en) * 1999-06-28 2002-08-08 Hitachi, Ltd Resin sealed electronic device
EP1353066A2 (fr) * 2002-04-12 2003-10-15 Diamond Electric MFG. Co., Ltd. Dispositif d'allumage pour un moteur à combustion interne
EP1369883A1 (fr) * 2002-06-04 2003-12-10 Delphi Technologies, Inc. Unité de bobine d'allumage
EP1388667A1 (fr) * 2002-08-06 2004-02-11 Delphi Technologies, Inc. Circuit de commande pour bobines d'allumage monté sur une carte à circuit imprimé dans un boítier avec trous pour bougies d'allumage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4132153A1 (de) * 1990-09-28 1992-04-09 Mitsubishi Electric Corp Zuendspuleinheit fuer einen verbrennungsmotor
US20020104519A1 (en) * 1999-06-28 2002-08-08 Hitachi, Ltd Resin sealed electronic device
EP1353066A2 (fr) * 2002-04-12 2003-10-15 Diamond Electric MFG. Co., Ltd. Dispositif d'allumage pour un moteur à combustion interne
EP1369883A1 (fr) * 2002-06-04 2003-12-10 Delphi Technologies, Inc. Unité de bobine d'allumage
EP1388667A1 (fr) * 2002-08-06 2004-02-11 Delphi Technologies, Inc. Circuit de commande pour bobines d'allumage monté sur une carte à circuit imprimé dans un boítier avec trous pour bougies d'allumage

Also Published As

Publication number Publication date
DE102010039587A1 (de) 2012-02-23
US20130180491A1 (en) 2013-07-18
BR112013003746A2 (pt) 2016-05-31

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